Tubular-box former



' April 22, 1930.

E. H. NEWTON ET AL 1,755,513

TUBULAR BOX FORMER ,Filed Sept. 8, 1927 5 Sheets-Sheet 1 5. i N R E A Q INVE T s fdw/h)%wf00 3 frz$ 6/860 BY I ATTORNEY April 22, 1930. E. H. NEWTON ET AL 1,755,513

TUBULAR BOX FORMER Filed Sept. 8, 1927 5 SheetsSheet 2 INVENTORS fdW/fl H. Man fan ATTORNEY April 22, 1930. E. H. NEWTON 1,755,513

TUBULAR BOX FORMER F iled Sept. 8, 1927 s Sheet-Sheet s v [NVENTORS fdwm l7. Men fan Faun/r Gris/ ATTRNEY April 22, 1930. E. H. NEWTON ET AL TUBULAR BOX FORMER Filed Sept. 8, 1927 5 Sheets-Sheet 4 l VENT 0R5 54W; a ll ewfon q Fry, fires/7 ATTORNEY April 22, 1930. E. H. NEWTON ET AL 1,755,513

TUBULAR BOX FORMER Filed Sept. 8, 1927 5 Sheets-Sheet 5 ATTORNEY chines and more Patented Apr. 22, 1930 g UNITED "STATES.

PATENT OFFICE EDWIN H. NEWTON AND FRANK GREEN, f KANSAQ CITY, MISSOURI, ASSIGNORS TO NATIONAL PAPER BOX 00., OF KANSAS CJITY, MISSOURI, A. CORPORATION 0E MISSOURI TUBULAR-BOX FORMER Application filed September 8, 1927. Serial No. 218,210.

The invention relates to trimming maarticularl to a machine of that character or use in t e manufacture of paper cartons; the principal object of the invention being to efiect formation of capreceiving necks on the ends of tubular carton bodies by a series of sawing and grinding operations.

In accomplishing'this object we have provided improved details of structure, the preferred forms of which are illustrated in the accompanying drawings, wherein:

Fig. 1 is a perspective viewof a machine constructed in accordance with this invention.

Fig. 2 is a perspective view of the machine from the rear, and diagonally opposite the View of Fig. 1.

Fig. 3 is a plan View.

Fig. 4 is a side elevation.

Fig. 5 is an enlarged perspective view of a portion of the apparatus including tube-supporting elements, and of cutting, grinding and brushing elements.

Fig. '6 is a perspective view of bearing supports for a driven shaft and of the means for supporting a bracket element on a shaft, the frame of the apparatus and shafts belng shown fragmentarily.

Fig. 7 is a sectional view of a tube-carrying member, showing fragmentarily the disk that supports a plurality of said members.

Fig. 8 is a perspective view of a cellular or paper tube such as is. especially considered in the design and description of this invention.

Fig. 9 shows a tube scored by the cuttlng element of the machine.

Fig. 10 shows a scored tube after being associated therewith.

' 1 designates a frame comprising the up- I right posts 2, upper lon itudinal members 3, lower longitudinal mem ers 4, a motor platform 5 supported on the longitudinal members 4, upper cross members 6 and lower cross members The members are shown as of wood but may be of metal. A shaft 8 is rotatably mounted in bearing boxes 9 on the forward portions of upper longitudinal members 3, the end of the shaft extending beyond the frame. A disk 10 is fixed on the end of. the shaft 8 (outside of the-frame) and constitutes the supporting element for the tubes 11 which are to be operated upon by the device.

The disk 10 is intended to be actuated intermittently and for this purpose its periphery is provided with notches 12 with which a propelling bar 13 engages, the bar being pivotally mounted at 14, for reciprocating action similarly to a pitman, on a gear wheel 15, below the disk and adjacent thereto, the gear wheel being keyed to a shaft 16 rotatably mounted in bearings 17 erected on a 1011- gitudinal member 4 and the platform 5. The bar 13 consists of two overlapping parts, 18 and 19, joined by bolts 20, for ad usting the length of the bar for diiferent degrees of intermittent rotation of the disk.

A coil spring 21 enforces the engagement of the bar with the disk, one end fixed in the bar and the other to one of the upright posts 2.

The bar is reciprocated and the disk rotated through the rotation of the gear wheel by a pinion 22 meshed therewith and keyed v on a shaft 23 that is journaled in bearings 24 supported on members 4 and 5. The shaft 23 is itself rotated through a sprocket 25 thereon carrying a chain 26 running on a Sprocket 27 on a counter shaft 28 (Fig. 6). The shaft 28 is journaled in pedestals 29 on the longitudinal members 4, and is rotated through a sprocket 30 thereon, over which i run a chain 31, the chain running on a rocket 32 on a pulley rack shaft 33 rotatz ible in bearin blocks 34 on the longitudinal members 4. pulley 35 on said shaft 33 is actuated by a be t 36 which runs over a pulley 37 of a motor 38, the motor being mounted on the-platform 5 and controlled by a switch box 39.

A pulley rack 40 comprises vertical members 41 on which are mounted upper bearings 42 and lower bearings 42, and cross bar 43. A transverse pulley shaft 44 is rotatable in the upper bearings 42, the rack itself being pivotally supported in upri ht osition on the said shaft, 33 that exten s t rough lower bearings 42, and is supported by the journal boxes 34 on the frame. 44 is a pulley 45 rotated by a belt 46 actuated by a pulley 47 on the shaft 33. An intermediate vertical reinforcing member 41' of the-rack member provides a stifi'ening factor and also means for adjustment of the rack in its oscillation on the axis of the shaft 33 through a set screw device consisting of the angle plate 48 fixed to an upper longitudinal member 3 having the rejecting. flange 49, a screw 50 being engaged in the flange and projectible against the intermediate vertical member 41 of the rack.

The rack is set in a desired position of oscillation by means of bolts 51 fixed inthe sides of the vertical member 41 and the member 41, and slidable in slots 52 of the uide plates 53 mounted on longitudinal mem ers 3 adj acent the rack, nuts 54 on the bolts latching the rack to the plates and frame.

The rack supports a hood 55 secured to its transverse member 43, the hood having a mouth 56 disposed adjacent the disk 10 to receive the particles removed from tubes being operated upon as will later be described.

A pipe 57 leads from the rear portion of the hood to a blower 58 mounted on a shaft 59 supported on an arm 60 and actuated by prising a threaded shank 64' extending through an opening 65 of the disk, a shoulder 66 bearing againstthe face of the disk, and a body portion 67. A nut 68 on the threaded shank secures the spindle in engagement with the disk. A tubular sleeve 69 is rotatably mounted on the body portion of each spindle, and is retained by a Washer 70 secured to the spindle by a screw 71. The sleeves are provided with interior annular grooves 72 to contain oil for lubrication, oil supply openings Flxed on the shaft 3 in the sleeves being closed by screw plugs Spindles may be provided of suitable length and diameter of body portions for carrying tubes of different lengt s and openings, and sleeves of suitable dimensions may be similarly provided to fit either on standard spindles or on selected spindles.

The sleeves are provided with annular shoulders 75 on their inner ends, as stops or uides for tubes 11 mounted on the sleeves or subjection to operation by the machine elements; the parts being provided of such dimensions that a tube may be easily slipped onto a sleeve, and will fit snugly thereon, but may easily be removed.

Our invention provides that the tubes shall be rotated while being operated upon, and

that the sleeves and spindles shall constitute backing or bearing factors, for enforcement on the yielding tubes, of the operations of the elements that will. presently be described.

These conditions are supplied by the functioning of an endless belt 78 that is actuated by a pulley 79 on the before-mentioned shaft 23, the opposite turn of the belt riding over a pulley 80 supported by a hanger assembly 81, the belt bemg disposed adjacent one edge of the disk to travel over the spindles, the hanger and shaft being substantially in a vertical plane.

The hanger assembly 81 comprises a post 82 erected on one of the frame members 3, from which a rod 83 projects, carrying rotatably a T sleeve 84. A pin 85 mounted in the arm of the T sleeve is connected with a yoke 86 in which the pulley 80 is supported. The T sleeve is retained in lateral position on the rod-by an elbow 87, and a collar 88, that are sleeved on the rod 83 one on each side of the T, and adjustably fixed to the rod by the screws 89. A coil spring 90 connected with the pin 85 and elbow holds the yoke 86 ieldingly, to maintain the desired degree of pressure of the belt on the spindles and tubes. The collar and elbow may be shifted on the rod to position the belt at a greater or less distance from the face of the disk, suitably to the length of the tubes that may be provided on the spindles, so that the belt will run over the middle portions of the tubes. The pulley 79 on the shaft 23 is similarly adjustable, for alignment with the pulley 80.

The belt is arranged adjacent a portion of the periphery of the disk 10, and its runs travel preferably in close proximity to each other. The outer run of the belt is retained away from contact with the effective run, by an idler pulley 91 mounted in a bracket 92 that is fixed to an upper longitudinal member 3. The inner run travels over the sleeves and tubes mounted thereon that are presented to the belt by the rotated disk. The belt, pressing the tubes, enforces frictional engagement of the tubes with the sleeves, rotates the tubes and the sleeves; and also establishes the tubes against the sleeves to provide the bearing that was suggested as desirable for efiectlve operation of trimming elements, namely, a cutting element '93, a grinding element 94 and a brushing element 95. These elements are supported and positioned on the frame and the rack for co-operative actuation, and for successive o erations on tubes brought into their range y the disk 10.

The cutting element 93 com rises the spaced cutting members 96 and 9 mounted on a shaft 98, and positioned by washers 99 retained by nut 100. The shaft is journaled in arcuate bearing blocks 101 positioned and supported within the arcuate recesses 102 of plates 103, and adjustable by the ad'ustin screws 104 and locked in position by t e loc nuts 105, the plates 103 being dependingly supported by a cross member 106 having a shank 107 slidably retained in a slot 108 of a post 109 erected on the frame 1. The post 109 is provided with a right angularly bent footing 110 that is secured to ongitudinal members 3 of the frame 1, and a bracing bar 111 stabilizes the vertical post in its function of supporting the cutting element.

The cutting members 96 and 97 each comprises a plurality of circular saws 96 and 97', and are designed to contact the opposite ends of tubes carried by the disk, and produce kerfs or grooves therein, as shown at 112 in Fi 9.

% pulley 113 is fixed to the shaft 98 adj acent its outer end, and a belt 114 rides over the pulley to rotate the saws, the belt being driven by a wide pulley 115 on the shaft 44.

The grinding wheel assembly 94 comprises the spaced grinding wheels 116 and 117 mounted on the shaft 44, and spaceable by washers 118, and so positioned that they will contact the portions of a tube that have been operated upon by the cutting element, to grind or remove by attrition the narrow portions of the tube periphery extending between the grooves. It is to be noted that the grinding wheel assemblyis adjusabl e independently of the cutting element, which is supported by the frame.

The brush element comprises the brushes 119 and 120 having collars 121, whereby they are mounted in adjustably spaced relation in vertical adjustment with cutting and inding elements, on a shaft 122, that is carried by means now to be described.

Attention is recalled to the pedestals 29 and counter shaft 28, since they support the brush element 95 and contribute to its adj ustment. An inverted hanging journal bracket 123 comprises bearing plates 124 and 125 pivotally mounted on t e shaft 28 and a cross arm 126 connecting the plates, the plates'carrying rotatably in their upper ends the shaft 122. One end of the shaft 122 is journaled in a slotted bearing'arm 127 adjustably secured by a bolt 128 to one vertical member 41 of the pulle rack, for bracing this end of the shaft. anges 129 fixed to the lower surface of one of the longitudinal members 3 cmbrace loosely the bearing plate 125, and set screws 130 provided with lock nuts 131, are

threaded in openings of the flanges, impingin, the shaft 28 being journaled in the block members of the pedestals, and set screws 133 establishing the blocks in the desired vertlcal position for relating the shaft and elements carried thereby suitably to other elements.

A pulle 134 is fixed on the shaft 122, a belt 135 trave ing over this pulley and over the pulley 115 on the shaft 44 of the pulley rack, to rotate the brush shaft to cause the brushes to remove the particles loosened by the grinding wheels, and to smooth recesses 136 produced by the cutters and wheels.

The structure provides that the disk 10 is intermittently rotated to so place the spindles and tubes carried thereby that the tubes may be rotated by the belt, the tubes in this position being operated upon by the saw, grinding and brush elements.

It is to be noted also that the belt rotates the tubes on the sleeves of the spindles in opposite direction tothe circular movement 0 the saw, grinding and brush elements, so that the efi'ective speed of the operating elements is correspondingly increased in relation to the tubes.

Provision is made for adjusting the relative positions of the operating elements to the spindles and tubes carried thereby, suitably for variations in the length of tubes and also for variation in the diameters of tubes; such diametrical variation being due either to a difierence in the thickness of the material of Y which the tubes are constructed or to the differing sizes of the tubes.

The longitudinal adjustment for varying lengths of tubes, so that the operating elements may act upon the ends of the tubes, is accomplished by the washers referred to, that are sleeved on the shafts to which the operating elements are keyed.

Adjustment of operating elements to varying diameters of tubes requires consideration of two factors, first, the spacing of the operating elements suitably from the spindles to accommodate the varying distances of the tube surfaces from the spindle axes; and second, alignment of the planes of the axis of the disk 10, an operative element shaft such as saw shafts 98, and the axis of a spindle which at the moment is in position for permitting operation upon a tube carried thereby. Such alignment is desirable so that the maximum resistance and stability may be provided for the impressment of the operating functions of the elements 93, 94 and 95 upon a tube with a minimum requirement of power, and so that a minimum strain on the structural .elements occurs. In other words, the structure is designed to secure a dead center relation of these classes of axes.

' Spacing of the saw element from the spindle-traversing circle, for greater diameter of tubes, is accomplished by the vertical transference of the bracket 106 in the slotted post 109. The blades 101 are then adjusted in the arcuately recessed lates 103 to position the axis of'the saw shaii: in a plane with the axis of the disk 10 and the axes of the spindles as they come into operative position. The saw bracket is stabilized in position by the screws 104 and nuts 105.,

The grinding element94 which is mounted on the rack 40, is adjusted for spacing by the pivoting of the rack on the shaft 23, which is fixed in properly pivoted position by the bolts in the arcuate slots 52 of the guide plates 53. The grinding element has only one adjusting feature, the pivoting or swinging of the rack 40 away from and toward the disk 10, and reuires but one. The adjusting features of the s iding bearings of the shaft 28, and the pivoting of the bearing plates 124 and 125, provide for spacing and alignment of the brush element. The slotted bearing arm bracket 127 is adjustable on the rack to accommodate the auxiliary bearing to the re-adjusted spacing of the brushing element.

Incidental elements may be installed to promote efiiciency in operation, such as a brake element 137 for the disk 10, comprising clamping members 138 clamped to the shaft 8 to provide the desired degree of frictional resistance, the outer end of the element being engaged with a transverse member, for example, the transverse footing member 110, to prevent rotation of the brake element with the shaft.

The machine being provided as described, the motor is started to cause intermittent rotation of the disk 10, the running of the belt 78 over spindles on the disk 10, the rotation of incising, abrading and rubbing members, and actuation of the blower. The operator is presumed to install the tubes on the spindles, and remove tubes, during interm1ssions of the rotation of the disk, and when spindles are not in the field of actuation of the belt 78. A part revolution of the spindles with the rotated disk positions a tube to receive the actuation of the belt. A further similar part-revolution of the spindles moves a belt-actuated tube to position to receive the incisions of the cutting members, a further part-revolution sitions the tube for abrading by the grin ing element, a further partrevolution positions the tube to be cleaned part-rotation of the disk, for removal. The rotation of a tube by the belt continues, therefore, for substantially a semi-revolution of a tube around the axis of the disk, and while being operated upon. The detritus from the tubes operated upon is drawn by the blower through the hood and discharged from the machine.

When a lot of tubes is provided of a size difierent from that previously operated upon, for example, tubesbotli longer and of considerably greater internal and external diameters, several readjustments are made. If the tubes are longer than the sleeves on the spmdles, sleeves are provided extending beyond the spindles and having countersunk shoulders to receive the reta' washers and nuts, or longer spindles and s eeves are installed. The newly provided sleeves have outside diameter adapted to the inside diameter of the new lot of tubes. The belt 78 is repositioned by moving the hanger on the rod 83 and the pulley on the shaft 23, so that the inside run of the belt will run over the middle portion of tubes placed on the sleeves; tension of the spring-elbow 87 permitting expansion of the arc-like course over which the belt runs. Points on the peripheries of the tubes most distant from the axis of the disk may represent points in a circle thatmay be called the effective circle, and portions of such circle adjacent the belt be considered the effective are for belt-actuation in the operation of the machine. The efiective are for cutter, grinder and brushing operations has a radius less than that of the belt arc, by the depth of the recess to be cut in the periphery of the tube, or in other words, less by the amount of reduction producled in the diameter of the tube to form the nec 1 The cutting element 93 is adjusted to the dimensions of the new lot of tubes, by spacing the saw member 97 thereof on the shaft 98 by the members 99 from the saw member. 96, so that the saw or cutting members will each make its plurality of grooves adjacent the ends of the tubes. The cutting element 93 is spaced from the effective are of operations, suitably to the new lot of tubes, by elevating the cross member 106 in the slotted post 109. Such positioning, however, tends to move the axis of the cutting members out of a plane containing the three elements that should be aligned in dead-center relation, namely, the axes of the cutting element, of a tube-carrying spindle in effective position for a tube to be operated upon, and of the disk. The desired alignment is now attained by swinging the cutter shaft 98 to a new position through adjustment of the arcuate bearing blocks 101 in the plates 103.

The grinding or abrading wheel 117 1s now moved along the shaft 44 and spaced by suitably spaced from the effective are of operations by swinging the pulley rack 40 on the axis of the frame-supported shaft 33, and setting the rack in desired position by the screw 50 in the angle plate 48. Such repositionin of the shaft substantially aligns its axis w1th the axis of an operably-positioned spindle and the axis of the disk.

The brushing elements are ad 'usted to new lengths of tubes by sliding the rush 119 on the shaft 122 to desired position and setting it there. Adjustments to changed diameter of tube, and for ali ment of axes, and in view of changed osition of rack 40, are attained b vertica adjustment of the sliding bearing blocks 132 in the pedestals 29 (Fig. 6), by pivotin the bracket element 123 which is contro led bythe screw 130 workin in the flanges 129; and by sliding the slotted arm 127 on its securing bolt 128 in the vertical member of the rack.

The chan es in position of the various shafts are re atively small, and adjustments in or in behalf of the length of belts and sprocket chains are not necessarily provided for, though they may be made.

When especially large tubes or tubes of other unusual character, are to be operated upon a relatively small number of spindles ma e used, others being removed from the dis so that the periods of inaction between actuations of the disk will be longer, to permit prolonged continuance of operations by the operating elements on the tubes.

The structure disclosed not only provides for the formation of cap-receiving necks on tubular cartons, but performs the function in an improved and more eflicient manner, and can be provided, installed and'operated at a substantial saving in time and money over the costs of machines heretofore available for similar functions.

What we claim and desire to secure by Letters Patent is:

1. A machine for producing peripheral recesses in bodies, comprisin a frame, a support on the frame for the odies, means for moving the support to position the bodies for operations thereon, spindles fixed on said support and rotatably carrying the bodies, means for rotating the bodies and rotatable recess-producing elements supported by the frame and having axes in a plane wit the axes of the spindles.

2. A machine for producing peripheral recesses in bodies, comprising a frame, a support on the frame for the bodies, means moving the support to position the bodies for operations thereon, spindles fixed on said suport and rotatabl carrying the bodies, means or rotating the odies and rotatable recessproducing elements supported by the frame.

'3. In a machine for recessing a cylindrical body, a frame, recessing elements mounted on the frame, means on the frame supporting the body, means for'successively positioning the body to be acted upon successively by sa d recessing elements and a plurality of means for rotating the recessing elements and the cylindrical body oppositely to each other while the body is in position to be acted upon.

4. In a machine for recessing cylindrical bodies, a frame, recessing elements supported by the frame, means on the frame for supporting the bodies, means for successively reIating the recessing elements with bodies to-be recessed, and means for rotating the cylindrical bodles while in position for being recessed.

5. In apparatus for trimming a portion ofthe periphery of tubes, a rotatable support for a plurality of tubes, means tointermittently rotate said support, means to rotate the tubes at a predetermined position of the support, and means for trimming said portion wh1le the tubes are being rotated.

.6. A machine for recessing cylinders comprising in combination, cylinder-sup orting means including a rotatable sleeve with which the cylinder may rotate, cylinder-rotating means including an endless belt engageable with the sleeve-supported cylinder, means actuatin said belt the belt enforcing the rotation 0' aforesai sleeve, and means for producing a recess in the cylinder while the cylinder is being rotated.

:7. A machine for recessing the ripheries of cylinders comprising in com ination, a

.frame, cylinder-supporting means mounted on the frame, a cuttlng element mounted on the frame, a rack pivotally supported by the frame, attrition elements supported by the rack, means carried by the rack for actuating the cutting and the attrition elements, and means for actuating said element-actuating means.

8. In apparatus for producing an annular recess in tubular bodies, a support for a pluralit of tubular bodies, cam means for in termittently moving said support, means for rotatin the tubular bodies, and means for producing the recesses operable during the non-actuating period of said cam means. 9. In apparatus for producing an annular recess in tubular bodies, a rotatable support for a plurality of tubular bodies, cam means for intermittently moving said support rotatably, means for rotating the tubular bodies intermittently, and means producing the re- I cesses operable during the operable period of said tube-rotating means.

10; A machine for producing peripheral recesses in bodies, comprising rotatable means supporting the bodies, spindles fixed on said rotatable means and rotatably carrying the bodies, means for rotating the bodies,

and rotatable recess-producing elements having axes in a plane with the axes of the spindles and of said rotatable supporting means.

11. A cylinder-trimming apparatus comprising a frame, a rack pivotally mounted on the frame, trimming elements supported by said rack, an element having means for supporting a plurality of cylinders to be trimmed ber rotatably. carrying the" several cylinders,

means for rotating the cylinders, and means for rotating the trimming elements, means for adjustably spacing the trimming elements from the axis of the c finder-supporting means including means or adjusting the positions of the trimming elements so that their axes are in a plane with the axis of said supporting element and with said cylindercarrying means when cylinders are'm position for bein operated upon.

13. A mac ine for producing peripheral recesses in bodies, com rising a frame, rotatable means on the rame supporting the bodies, means positioning the bodies for heing operated upon, a rack pivotally mounted'on the frame, rotatable recess-producing elements supported by the rack and including a brush element, means for adjusting the recess-producin elements to the v osltions of the bodies inc uding means for pivoting said -.rack, and means for adjusting the position of said brush element on said rack.

14. A machine for producing recesses in the peripheries of tubes, comprising a frame, a disk pivotally mounted on the frame, a brake element to restrain yieldingly the movement of the disk, means for intermittently rotating the disk, spindles fixed on the face of the disk adjacent its rim, sleeves rotatable on the spindlesto receive the tubes,

- a belt running over the sleeves during a portion of their revolution with the disk, means for supporting the belt, cutting knives supported adjacent the disk for contact with a tube at a point in the rotation of the disk,

grinding wheels mounted adjacent the disk for contact with tubes successively ap roaching it upon rotation of the disk, a p urality of means including co-operating means for adjusting said cutter and 'nding wheels for operating on tubes of ifierent diameters,

to frictionally latch the cylinder to the sleeve for rotating thesleeeve, and recessing means. t In testimony whereof we afiix our signaures.

EDWIN H. NEWTON. .FRANK GREEN. 

